Renewable Energy Enhancement Act of 2006

Renewable Energy Enhancement Act of 2006 - Amends the Internal Revenue Code to extend through 2015: (1) tax credits for investment in certain solar energy properties and qualified fuel cell and microturbine properties; (2) the tax credit for residential energy efficient property expenditures; and (3) tax credits for expenditures for nonbusiness geothermal heat pumps and geothermal and solar energy facilities used to produce electricity. Increases from $2,000 to $5,000 the maximum amount of the tax credit for photovoltaic and solar water heating property expenditures.